Williamson County is the wealthiest county in Tennessee. Franklin is the largest city located within this county. Moreover, this county is among the top ten wealthiest in the nation.
  The population of Williamson county is estimated at 218,888. In 2017 there were 2,337 births and 1,202 deaths in Williamson county. Williamson county has 40,747 housing units that are owned with a mortgage or a loan, 11,970 that are owned free and clear and 12,169 that are renter occupied.

  The residents of Williamson County filed 103,130 federal tax returns in 2017. This amount represents 3.4% of all Tennessee filings and 0.069% of the entire nation. Williamson had an impressive combined total federal tax liability of $2,689,442,000 on earned income of $13,383,074,000. Other notable statistics from Williamson County were 1,430 unemployment claims which collected a total of $5,125,000 and 39,540 charitable contributions valued at $391,006,000. 41,150 filings from Williamson County paid a combined total of $151,623,000 in property taxes and 36,980 filings paid $435,295,000 on mortgage interest costs.

  In 2010 Williamson county had 200 religious congregations with an estimated 113,633 members.
58.1% of the Williamson population has a college level Bachelors degree or higher. 4.5% have less than a highschool diploma level education.

About 48% of Williamson County voted in the presidential election of 2016. This represents an increase from the 2012 election by 11,094 votes.
At $111,427 the median income is 217.1% of the Tennessee average. An estimated 3,150 people claimed to be unemployed last year in Williamson, the equivalant of around 2.7% of the county population. This represents a decrease in the level of unemployment from the previous year's value of 3.4%.

Top 15 Industries in Williamson County.
Total # Employed	Industry Job Type
13,942	Administrative and support and waste management and remediation services
13,620	Administrative and support services
12,866	Retail trade
12,008	Finance and insurance
11,192	Health care and social assistance
9,418	Accommodation and food services
8,289	Food services and drinking places
8,041	Restaurants and other eating places
7,610	Professional, scientific, and technical services
7,561	Insurance carriers and related activities
6,771	Employment services
6,653	Ambulatory health care services
4,804	Information
4,687	Full-service restaurants
3,851	Agencies, brokerages, and other insurance related activities

In 2018 the average price reduction was 1.78% in Williamson County (averaging across 6 zip codes a sample of which are; 37067, 37069, 37027, 37135 and 37179).

In 2018 14.28% of listings in Williamson County (averaging across 6 zip codes a sample of which are; 37179, 37064, 37067, 37135 and 37069) dropped their price.

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